Pith Number

pith:G3YP3542

pith:2003:G3YP3542NGDWMC3HPX7Q5LGF3V

not attested not anchored not stored refs pending

Presupernova Evolution of Rotating Massive Stars and the Rotation Rate of Pulsars

A. Heger (U Chicago), H. C. Spruit (MPA), N. Langer (U Utrecht), S. E. Woosley (UCSC)

arxiv:astro-ph/0301374 v2 · 2003-01-17 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G3YP3542NGDWMC3HPX7Q5LGF3V}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T14:12:33.568631Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36f0fdf79a6987660b677dff0eacc5dd6e4d730993991e19d3abaccc82bb94b5

Aliases

arxiv: astro-ph/0301374 · arxiv_version: astro-ph/0301374v2 · doi: 10.48550/arxiv.astro-ph/0301374 · pith_short_12: G3YP3542NGDW · pith_short_16: G3YP3542NGDWMC3H · pith_short_8: G3YP3542

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/G3YP3542NGDWMC3HPX7Q5LGF3V \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 36f0fdf79a6987660b677dff0eacc5dd6e4d730993991e19d3abaccc82bb94b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d77def8eb824a51868978ece05d8423acbdfbfdb8bf227fb0e3ef45716b914f3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-01-17T23:07:51Z",
    "title_canon_sha256": "b46034033c961c4b453ae39d0b2433133a8f9617a630ac020fe9a0f84f02f988"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0301374",
    "kind": "arxiv",
    "version": 2
  }
}